1969 - 1971

Instructor in Medicine and Research Associate in Gastroenterology, Hospital of University of Pennsylvania, Philadelphia, PA, USA

 

1972 -1977

Assistant Professor of Medicine, University of Ankara School of Medicine, Ankara, Turkey

 

1977 - 1982

Professor of Medicine (tenured), Gastroenterology Department, University of Ankara School of Medicine, Ankara, Turkey

 

1980 - 1982

Visiting Professor of Medicine, Gastroenterology Section, Department of Medicine, Tulane University School of Medicine, New Orleans, LA

 

1982 - 1991

Professor of Medicine (tenured), Gastroenterology Section, Department of Medicine, Tulane University School of Medicine, New Orleans, LA

 

1984 - 1991

Adjunct Professor of Physiology, Department of Physiology, Tulane University School of Medicine, New Orleans, LA

 

1986 - 1991

Chief of Gastroenterology Section, Tulane University School of Medicine, New Orleans, LA

 

1989 - 1990

Interim Chairman, Department of Medicine, Tulane University School of Medicine, New Orleans, LA

 

1991 - 2000

Professor of Medicine (tenured) and Associate Chief, Gastroenterology Division, Department of Medicine, Baylor College of Medicine, Houston, TX

 

1991 - 2000

Chief of Gastroenterology Section The Methodist Hospital/Baylor College of Medicine Houston, TX

 

2000-Present Clinical Professor of Medicine, Department of Medicine, Baylor College of Medicine, Houston, TX
2006-Present Clinical Professor of Medicine, Weill Medical College of Cornell University
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